Measurement of single top-quark production in the s-channel in proton–proton collisions at √s = 13 TeV with the ATLAS detector
(2023) In Journal of High Energy Physics 2023(6).- Abstract
- A measurement of single top-quark production in the s-channel is performed in proton–proton collisions at a centre-of-mass energy of 13 TeV with the ATLAS detector at the CERN Large Hadron Collider. The dataset corresponds to an integrated luminosity of 139 fb −1. The analysis is performed on events with an electron or muon, missing transverse momentum and exactly two b-tagged jets in the final state. A discriminant based on matrix element calculations is used to separate single-top-quark s-channel events from the main background contributions, which are top-quark pair production and W-boson production in association with jets. The observed (expected) signal significance over the background-only hypothesis is 3.3 (3.9) standard deviations,... (More)
- A measurement of single top-quark production in the s-channel is performed in proton–proton collisions at a centre-of-mass energy of 13 TeV with the ATLAS detector at the CERN Large Hadron Collider. The dataset corresponds to an integrated luminosity of 139 fb −1. The analysis is performed on events with an electron or muon, missing transverse momentum and exactly two b-tagged jets in the final state. A discriminant based on matrix element calculations is used to separate single-top-quark s-channel events from the main background contributions, which are top-quark pair production and W-boson production in association with jets. The observed (expected) signal significance over the background-only hypothesis is 3.3 (3.9) standard deviations, and the measured cross-section is σ=8.2−2.9+3.5 pb, consistent with the Standard Model prediction of σSM=10.32−0.36+0.40 pb. [Figure not available: see fulltext.] © 2023, The Author(s). (Less)
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- publishing date
- 2023
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Hadron-Hadron Scattering, Top Physics
- in
- Journal of High Energy Physics
- volume
- 2023
- issue
- 6
- article number
- 191
- publisher
- Springer
- external identifiers
-
- scopus:85164189245
- ISSN
- 1029-8479
- DOI
- 10.1007/JHEP06(2023)191
- language
- English
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- yes
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- bc04f120-f415-42c9-8a59-d629cf443adc
- date added to LUP
- 2023-11-15 13:50:11
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- 2023-11-15 13:52:24
@article{bc04f120-f415-42c9-8a59-d629cf443adc, abstract = {{A measurement of single top-quark production in the s-channel is performed in proton–proton collisions at a centre-of-mass energy of 13 TeV with the ATLAS detector at the CERN Large Hadron Collider. The dataset corresponds to an integrated luminosity of 139 fb −1. The analysis is performed on events with an electron or muon, missing transverse momentum and exactly two b-tagged jets in the final state. A discriminant based on matrix element calculations is used to separate single-top-quark s-channel events from the main background contributions, which are top-quark pair production and W-boson production in association with jets. The observed (expected) signal significance over the background-only hypothesis is 3.3 (3.9) standard deviations, and the measured cross-section is σ=8.2−2.9+3.5 pb, consistent with the Standard Model prediction of σSM=10.32−0.36+0.40 pb. [Figure not available: see fulltext.] © 2023, The Author(s).}}, author = {{Aad, G. and Åkesson, T.P.A. and Corrigan, E.E. and Doglioni, C. and Ekman, P.A. and Geisen, J. and Hedberg, V. and Jarlskog, G. and Konya, B. and Lytken, E. and Mjörnmark, J.U. and Mullier, G.A. and Poettgen, R. and Simpson, N.D. and Skorda, E. and Smirnova, O. and Zwalinski, L.}}, issn = {{1029-8479}}, keywords = {{Hadron-Hadron Scattering; Top Physics}}, language = {{eng}}, number = {{6}}, publisher = {{Springer}}, series = {{Journal of High Energy Physics}}, title = {{Measurement of single top-quark production in the s-channel in proton–proton collisions at √s = 13 TeV with the ATLAS detector}}, url = {{http://dx.doi.org/10.1007/JHEP06(2023)191}}, doi = {{10.1007/JHEP06(2023)191}}, volume = {{2023}}, year = {{2023}}, }